The diameter of main bars in R.C.C. columns, shall not be less than

[Srinivasan]

The diameter of main bars in R.C.C. columns, shall not be less than

(A) 6 mm

(B) 8 mm

(C) 10 mm

(D) 12 mm

The correct Answer Is
(D) 12 mm

 

[Jimmi6353]

Answer is (D) 12 mm
Reference : As per IS 456:2000 column section notes

 

[Jayant Joshi]

D) 12 mm

That is what I know for sure.

But why, may be required to fulfill criteria of slenderness ratio.